XO Communications was a telecommunications company that provided a range of services including voice, data, and Internet communications solutions primarily for businesses and large enterprises. The company offered innovative solutions such as hosted PBX, SIP trunking, and MPLS IP-VPN, leveraging its extensive nationwide fiber network. XO Communications catered to businesses of various sizes, aiming to enhance connectivity and communication efficiency with its tailored services. In February 2016, the company was acquired by Verizon Communications, and its services have since been integrated into Verizon's suite of enterprise solutions. As a result, XO Communications no longer operates as an independent entity.